four legs intersection 四路交叉
three-legs intersection 三路交叉
·2,447,543篇论文数据，部分数据来源于NoteExpress
Those with a quick pace and long legs will be lucky if they get to the other side with the changing of two traffic lights that are placed at every intersection.
每个交叉口都设有两个交通信号灯，即使是腿长步子快的人要在两个灯变化前走到另一边，那也算幸运的。
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